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This commit is contained in:
Manav Rathi 2024-05-04 17:48:37 +05:30
parent 42089403fd
commit 3c000b5c62
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1 changed files with 19 additions and 8 deletions
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27
web/apps/cast/src/services/cast.ts
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@ -108,6 +108,11 @@ export const renderableImageURLs = async function* (castData: CastData) {
*/
const urls: string[] = [""];
let i = 0;
/**
* Number of milliseconds to keep the slide on the screen.
*/
const slideDuration = 10000; /* 10 s */
/**
* Time when we last yielded.
*
@ -116,6 +121,11 @@ export const renderableImageURLs = async function* (castData: CastData) {
*/
let lastYieldTime = Date.now();
// The first time around advance the lastYieldTime into the future so that
// we don't wait around too long for the first slide (we do want to wait a
// bit, for the user to see the checkmark animation as reassurance).
lastYieldTime += 7500; /* 7.5 s */
while (true) {
const collection = await getCastCollection(castToken, collectionKey);
await syncPublicFiles(castToken, collection, () => {});
@ -126,16 +136,16 @@ export const renderableImageURLs = async function* (castData: CastData) {
for (const file of files) {
if (!isFileEligibleForCast(file)) continue;
if (urls.length < 4) {
try {
urls.push(await createRenderableURL(castToken, file));
haveEligibleFiles = true;
} catch (e) {
log.error("Skipping unrenderable file", e);
}
try {
urls.push(await createRenderableURL(castToken, file));
haveEligibleFiles = true;
} catch (e) {
log.error("Skipping unrenderable file", e);
continue;
}
if (urls.length < 4) continue;
const oldestURL = urls.shift();
if (oldestURL && i !== 1) URL.revokeObjectURL(oldestURL);
i += 1;
@ -146,7 +156,8 @@ export const renderableImageURLs = async function* (castData: CastData) {
];
const elapsedTime = Date.now() - lastYieldTime;
if (elapsedTime < 10000) await wait(10000 - elapsedTime);
if (elapsedTime > 0 && elapsedTime < slideDuration)
await wait(slideDuration - elapsedTime);
lastYieldTime = Date.now();
yield urlPair;